| Subject | Predicate |
| A: 'birds' refers to all birds; so distributed | does not refer to every 'winged creature' e.g., bats, flying fish; so undistributed |
| E: refers to all birds by implication as they are not part of the predicate class; so distributed | refers to all wingless creatures by implication that they are not part of the subject class of birds; so distributed |
| I: refers only to some birds; so undistributed | refers only to some black things--only those that are birds; so undistributed |
| 0: refers only to some birds; so undistributed | refers to all 'black things', none of which is in the subject class of "some birds"; so distributed |